Rolling railway-chair



.l. H. SNYDER.

Making Railroad Chairs.

Patented July 13, 1858.

.1 u b [FIT l N. PETERS. Phmo-Lilhogrzpher. Wash ngion D c UNITED STATESPATENT oFFioE.

J. H. SNYDER, OF TROY, NEW YORK.

ROLLING RAILWAY-CHAIR.

Specification forming part of Letters Patent No. 20,901, dated July 13,1858; Reissued June 3, 1862;, No. 1,316.

To all whom it may concern:

Be it known that I, JOHN H. SNYDER, of the city of Troy, in the count-yof Rensselaer and State of New York, have invented a new and usefulImprovement in Manufacturing lVrought-Iron Railway-Chairs of the KindHereinafter Described; and I do here by declare that the following is afull and exact description of the same, reference being had to theannexed drawings, making a part of this specification, in which the sameletters indicate like parts in all the figures.

In the annexed drawings, Figures 1 and 2 are perspective views of thechairs, in the rolling of which I have made this improvement. Fig. 1represents the chair with one inward-turned lip, A, to hold one side ofthe base of the rail, and with an upright flange, B, to support theother side; and Fig. 2 shows the chair with two lips A, A, turnedinward. In each chair the lip and flange, or the two lips, extend thewhole length of the chair, and the bottom of each chair projects out onboth sides, as at C C, beyond the bases of the lip and flange or the twolips,

throughout their whole length. Figs. 1 and 2 represent the chairs asthey appear when shaped and made of proper length, but before they arepunched to receive the spikes which are to hold them to the timbers ofthe track. Fig. 3 is a perspective viewand Figs. 4 and 5 are transversesections of the blank from which I make the chairs with one lip A; andFig. 6 is a perspective view and Fig. 7 a transverse section of theblank from which I form the chairs with two inward-turned lips.WVrought-iron railwaychairs, having the same general construction asthese, have been heretofore produced from substantially the same blanksas those from which I manufacture these chairs.

My improvement relates only to the mode of forming or turning inward thelip or lips of the chairs.

I form or turn inward the lip or lips A of the chairs by means of twosuitably shaped rollers D, E, mounted and run together in the samemanner that rollers are commonly set and run together in rolling iron.The arrows on the rollers indicate their direction of motion. F, Fig. 8,represents a section of the frame which holds the rollers; and G G arethe usual set-screws by which the upper roller is adjusted to and keptfrom re ceding too far from the lower one. These rollers are providedwith front guide-plates and back guard-plates, (not shown in thedrawings,) corresponding respectively in form to the blanks, and thebars of chairs produced, the same as rollers for forming other iron barsof irregular shape are usually furnished with.

In manufacturing the chairs which have but one lip A, from the blanksFig. 3, I run each blank, while at a welding heat or there about,edgewise between the rollers D, E, through the grooves P and N as shownat I in Figs. 8 and 9. There the roller E has the collar 0, upon whichcollar the flange H of the blank is drawn and turned down by the side 0of the groove P in the roller D, so as to form the lip or give the blankthe shape there shown in cross section, or at Fig. 10 in perspective.The groove N in the roller E is shaped to fit the flange-edge of theblank, and keep it in place while running through between the rollers,as shown. After the blank has been passed through the grooves P and N,it is then immediately run flatwise between the rollers in the grooves Uand V, as shown at J in Figs. 8 and 9;which grooves are so shaped thatwhen the blank leaves them the bending of the lip of the chair iscompleted, as there shown in cross section, and at Figs. 14 and 15 inperspective.

In formin the chairs with two lips, A, A, from blanks like that seen inFig. 6, I run each blank, while at a welding heat or thereabout, twice,edgewise, between the two rollers, D, E, Fig. 12;once, as shown at R, toturn one lip, and again, as represented at S, to form the other; theroller E there having the collar 0, 0, upon which the flanges H, H, ofthe blank are drawn down and turned inward by the sides 0 c of thegrooves P, P, in the roller D, so as to form the lips or give the blankthe shape shown in cross section at S. The roller E also has the groovesN, N, formed to fit and keep in place that edge of the bar not beingacted upon by the roller D and collar 0. This twice running of the blankedgewise between the rollers so prepares it that it afterward receivesthe required form of the chairs by passing it flatwise between the tworollers shaped and run together substantially as shown at T in Fig. 12.Fig. 13 is a perspective view of a finished bar of the chairs as left bythe rollers at T.

After the bars have received the form of the chairs, as shown by Figs.13, 1A and 15, the bars are then immediately sawed into the requiredlengths, Q, for the chairs, as indicated by the transverse lines 00, andafterward punched in the usual manner with holes, w, for the spikes.

The form of the collar or collars 0 will vary according to the shape ofthe recess to be left under the lip or lips of the chairs, as shown byFigs. 8 and 9; and the form of the grooves N P and U V, will also beclifferent as the shape of the lip or lips A and flange B varies, asillustrated in Figs. 8, 9 and 12.

Now, in manufacturing wrought-iron railway-chairs of the kind hereindescribed, from blank bars having two upright flanges H B, or H, H,substantially as represented in Figs. 3 and 6, my improved mode offorming or turning inward the lip or lips A of the chairs, may bedistinguished from every other method of doing the same thing, by thefact that in my mode the lip or lips, A, of the chairs are formed orturned inward upon a collar, (or collars,) O, of a roller, E, by meansof another roller D, substantially as herein set forth. This mode ofturning inward the lip or lips of the chairs upon the collar or collarsof a roller constitutes my invention, and is much better than themethods heretofore practiced, by myself and others, of forming the lipor lips of the chairs upon a stationary core, or mandrel,

or former, fixed between two rollers which draw the blank along and workthe flange or flanges H in upon the core. For it is difficult to keepthe core in its place between the rollers, especially in forming thechairs with one lip; and the core heats rapidly and quickly wears downso as to leave the chairs too narrow to receive the rails; and hence thecores must be often renewed. And the core is an obstruction to theintroduction of the blank between the drawing rollers above and belowthe core; and the blank is drawn along the core or former with muchdifliculty. manufactured at a much cheaper rate, and are also better,when their lips, A, are turned upon the collar 0 of the roller accordingto my mode herein described, than when the lips of the chairs are formedupon a core as heretofore practiced.

that I claim as my invention and desire to secure by Letters Patent isForming or turning the lip, or lips, A, of the chairs, upon the collar,or collars, O, of a roller, E, by means of another roller, D,substantially as herein set forth.

JOHN H. SNYDER.

Witnesses:

WM. H. SNYDER, J r., AUSTIN F. PARK.

[FIRST PRINTED 1911.]

Besides, the chairs are-

